23723743 has 2 divisors, whose sum is σ = 23723744. Its totient is φ = 23723742.

The previous prime is 23723731. The next prime is 23723747. The reversal of 23723743 is 34732732.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23723743 - 2¹³ = 23715551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23723747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11861871 + 11861872.

It is an arithmetic number, because the mean of its divisors is an integer number (11861872).

Almost surely, 2^23723743 is an apocalyptic number.

23723743 is the 2604-th centered heptagonal number.

23723743 is a deficient number, since it is larger than the sum of its proper divisors (1).

23723743 is an equidigital number, since it uses as much as digits as its factorization.

23723743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21168, while the sum is 31.

The square root of 23723743 is about 4870.7025160648. The cubic root of 23723743 is about 287.3388859105.

The spelling of 23723743 in words is "twenty-three million, seven hundred twenty-three thousand, seven hundred forty-three".